带redis的python对象存储

刚开始学习Redis。从ehcache的背景来看,在redis中,很少有事情让我感到困惑。这就是我想要达到的目标:

import redis


class User:

    def __init__(self, idd, name):
        self.id = idd
        self.name = name


cache = redis.Redis(host='localhost', port=6379, db=0)
#cache = redis.StrictRedis(host="localhost", port=6379, charset="utf-8", decode_responses=True)

user1 = User(1, 'john')
user2 = User(2, 'jack')

users_dict = {}
users_dict['1'] = user1
users_dict['2'] = user2

print(users_dict)

if not cache.exists('users'):
    cache.set('users', users_dict)

users_dict_retrieved = cache.get('users')
print(users_dict_retrieved)

print(users_dict_retrieved.get('1').name)

它应该只打印出来 john 作为输出。以下是我得到的输出:

{'1': <__main__.User object at 0x103a71710>, '2': <__main__.User object at 0x103a71780>}
b"{'1': <__main__.User object at 0x103a71710>, '2': <__main__.User object at 0x103a71780>}"
Traceback (most recent call last):
  File "/Users/rishi/code/test.py", line 34, in <module>
    print(users_dict_retrieved.get('1').name)
AttributeError: 'bytes' object has no attribute 'get'

但我得到 AttributeError: 'bytes' object has no attribute 'get' . 我理解这是因为当检索对象时,它是字节形式的。我试着用 cache = redis.StrictRedis(host="localhost", port=6379, charset="utf-8", decode_responses=True) 相反,它也将对象表示转换为字符串。我也做了一些实验 hset 和 hget 但这也出了问题。有什么简单的解决方法吗?还是必须将对象写入字符串以进行存储,然后在检索后使用字符串到对象?

class User: def __init__(self, idd, name): self.id = idd self.name = name def to_dict(self): return self.__dict__ """ rest of code """ users_dict = {} users_dict['1'] = user1.to_dict() users_dict['2'] = user2.to_dict()